Diving-gear.



H. STELZNER.

DIVING GEAR.

APPLICATION FILED JULY 6. I917.

Patented Sept. 4,1917.

%% WARN HERMAN. STELZNER, 0F L'll'BECK, GERMANY, ASSIGNOR TO THE FIRM OFDRAGER- WEEK, HEINB. & BERNIE. DRAG-ER, 0F L'llBECK, GERMANY.

DIVING-GEAR.

Specification of Letters Patent.

Patented dept. 4L, 19f 't.

To all whom it may concern:

Be it known thatI, HERMANN STELZNEB, a citizen of the German Empire,residing at Liibeck, in the German Empire, have invented certain new anduseful Improvements in Diving-Gear, of which the following is aspecification.

At great depths of water there are generally strong currents which maybe dangerous for a diver, as he is forced by such currents against theair supply tube, life line or telephone cable, and might even be forcedup to the surface against his will, which would cause divers disease(nitrogen poisoning); I

This danger is obviated by the connections being carried over a weightlowered to the bottom of the water and not directly vertically to thediver below so that they lead from the weight to the diver in anapproximately horizontal direction. It is true that the pressure ofcurrents against a connection (tube, cable, etc.,) guided in this manneris also transmitted to the diver,'but then it exercises chiefly only apull in the horizontal direction which can not force the diver upward atall, or at least not in 'a dangerous manner. For if the diver should beforced upward to the surface he would have to be at a distance from thebottom weight, which will not generally be the case, but even if it is,injury to health can be avoided by again sinkin him immediately bypulling in the life line guided over the weight.

It has hitherto been impossible to sink a diver who was suddenly forcedup and who had a considerable buoyancy, without letting air out of thedivers dress. When the diver is sunk for the purpose described there ishowever the further danger that owing to insuflicient counter pressure,the diver is crushed by the water pressure, in case that owing tofaintness or weakness he is unable to use the valve in the helmetproperly. In such a case it is necessary to keep a second diver readyfor the purpose of helping the other diver. This measure of precautionis rendered unnecessary by the present invention. The diver forced upcan be at once pulled down again, or pull himself down again in spite ofthe great buoyancy of his dress.

A construction of the diving gear forming the subject-matter of theinvention s illustrated in the accompanying drawing in which' Figure 1shows the gear in use; Fig. 2 is a plan of the weight separately, thepivoted arm carry1ng the guide roller for the connection being removed;-Fig. 3 explains the use of the weight during the hoistlng up of thediver, and Fig. 4 is a detailed view on a larger scale showing one ofthe guide funnels in its 0 ened position.

The deep iving gear comprises a weight a forming an anchor, preferablyin the shape of a truncated cone and provided with a pivoted arm 0carrying a guide pulley b. The arm a is rotatably mounted on a stem orstock d provided on the weight a and carrying at the free end a rim line2'. For the purpose 0 guiding more satisfactorily the connection is(life line, telephone cable, air' tube) which passes under the guideroller 6 and leads to the diver, there are provided in front and at theback of the guide roller 12 ide funnels f and g which preferably fol andthrough which passes the connection is.

In Fig. L I have illustrated a practical form of a foldable guide funnelcomposed of two halves g and g in hinged connection with each other.After the cable It has been placed into the opened guide funnel the twohalves g and g are closed around the said cable and secured by putting apin a through the registering eyelets g and 9 The guide funnel f isconstructed in an analogous manner of two hinged halves f and P. Thefunnels f and g are held in correct position relatively to the roller 6by means of a stay piece m. The weight a is provided at two opposite.points with foot rests h on which the diver can stand when he islowered or pulled up, together with the gear.

The method of using the deep diving gear will be clear without anyfurther explanation from Fig. 1 of the drawing. If the diver is to bepulled u he takes out the connection is from the unnels f and g and offthe guide roller 6, and stands on the foot rests h of the weight, at thesame time holding with his hands to the stock d and the ring 6 in themanner shown in Fig. 3, or he attaches himself to the stem d by means ofa large hook provided on a body belt so as to keep his hands free. Thediver need not therefore hold on so firmly as with an ordie for theanchor nary cable, so that any fatigue of the diver which is speciallyharmful when he is coming out, is avoided, and on the contrary he canmake gymnastic movements of hlS limbs for accelerating expulsion ofnitrogen gases from his body during the hoisting up.

1. A diving gear comprisin a weight arranged to be lowered to the ottomof the water, and guiding means for the diving tackle carried by saidweight.

2. A diving gear comprising a weight arranged to be lowered to thebottom of the water, an arm pivotally carried by said weight, and aguide roller for the diving tackle rotatably mounted on said arm.

3. A diving gear-comprisin a weight arranged to be lowered to the ottomof the water, an arm pivotally carried by said weight, a guide rollerfor the diving tackle rotatably mounted on said arm and guiding funnelscarried by said arm in cooperative relation to said roller.

4. A diving gear-comprising a weight arranged to be lowered to thebottom of the water, a stem extending upwardly from said weight, meansconnected with said stem for lowering said weight, an arm rotatablymounted on said stem and a guide roller for the diving tackle carried bysaid arm.

5. A diving gear comprising a weight, means for lowering said Weight tothe bottom of the water, and foot rests on said weight for the diverwhereby said weight may be used as a carrier for the diver.

6.- A diving gear comprising a weight arranged to be lowered to thebottom of the water, guiding means for the diving tackle carried by saidweight, and guiding funnels carried by said weight in cooperativerelation to said guiding means, said funnels comprising sections hingedtogether and arranged to be opened to receive the diving tackle andclosed to guide said tackle to said guiding means.

HERMANN STELZNER.

